*GASP!* I love these guys too, they're beautiful!! Never seen them before, I bet they're rare and expensive, huh?
Sort of. If they had their weapons and other pieces they also combine into a 3-bot combiner (Road Caesar). While they can combine as-is, there's key parts missing such as the super-head, the fists, and feet. They were released without the combiner bits in Europe (or maybe just UK), but never stateside. I gave $80 for this set as-is, which isn't bad IMO given that their Brainmasters are intact, but I've seen a complete Road Caesar go in upwards of $300-$400 on the high end.